POSITIVE ELECTRODE ACTIVE MATERIAL, METHOD FOR PRODUCING SAME, AND NONAQUEOUS ELECTROLYTE BATTERY HAVING POSITIVE ELECTRODE CONTAINING POSITIVE ELECTRODE ACTIVE MATERIAL

WIPO Patent Application WO/2007/034821

A1

Disclosed is an olivine-type positive electrode active material which is a low-cost positive electrode active material having high safety and excellent battery characteristics such as energy density. Also disclosed are a method for producing such an olivine-type positive electrode active material, and a nonaqueous electrolyte battery having a positive electrode which contains such an olivine-type positive electrode active material. Specifically disclosed is a positive electrode active material having a particle diameter of 10-500 nm and containing an olivine-type lithium manganese phosphate compound represented by the following general formula (1): LixMnyMaPO4 (1) (wherein 0 < x < 2, 0 < y < 1, 0 < a < 1, and M represents at least one metal element selected from the group consisting of Co, Ni, Fe, Zn, Cu, Ti, Sn, Zr, V and Al).

IIZUKA SHINJI (JP)
OMAE OSAMU (JP)
SUETO KUMIKO (JP)
SHIMADA TAKESHI (JP)
OKADA SHIGETO (JP)
IWANAGA TOMOKO (JP)
SHIRATSUCHI TOMOYUKI (JP)
YAMAKI JUN-ICHI (JP)

PCT/JP2006/318607

March 29, 2007

September 20, 2006

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KANTO DENKA KOGYO KK (JP)
UNIV KYUSHU NAT UNIV CORP (JP)
IIZUKA SHINJI (JP)
OMAE OSAMU (JP)
SUETO KUMIKO (JP)
SHIMADA TAKESHI (JP)
OKADA SHIGETO (JP)
IWANAGA TOMOKO (JP)
SHIRATSUCHI TOMOYUKI (JP)
YAMAKI JUN-ICHI (JP)

C01B25/45; H01M4/136; H01M4/58; H01M10/052; H01M10/36

JP2005047751A	2005-02-24
JP2005050684A	2005-02-24
JP2003203628A	2003-07-18
JP2004259471A	2004-09-16

See also references of EP 1936721A4

SHAMOTO, Ichio et al. (Section 206 New Ohtemachi Bldg., 2-1, Ohtemachi 2-chome, Chiyoda-k, Tokyo 04, JP)

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